Условие:

78 + 9
36 + 5
92 + 0
7 + 18
9 + 33
0 + 50
434
589
8686
368
246
180

78 + 9 = 78 + 2 + 7 = 80 + 7 = 87
36 + 5 = 36 + 4 + 1 = 40 + 1 = 41
92 + 0 = 92
7 + 18 = 5 + 2 + 18 = 5 + 20 = 25
9 + 33 = 2 + 7 + 33 = 2 + 40 = 42
0 + 50 = 50
434 = 4331 = 401 = 39
589 = 5881 = 501 = 49
8686 = 0
368 = 3662 = 302 = 28
246 = 2442 = 202 = 18
180 = 18